Optical phase conjugator and optical reception apparatus and opt

Details Optical phase conjugator and optical reception apparatus and opt Optical phase conjugator and optical reception apparatus and opt

1996-02-09

1998-07-07

Pascal, Leslie

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359160, 359161, 359173, 359338, H04B 1018

Patent

active

057777705

ABSTRACT:
The invention provides an optical phase conjugator suitable for use with a repeater, for example, for an optical communication system for a very long distance of up to several thousands kilometers across an ocean as well as an optical reception apparatus and an optical transmission apparatus for use with an optical communication system which employs the optical phase conjugator. The optical phase conjugator comprises an optical phase conjugation section for outputting signal light having a frequency or spectrum inverted from that of input signal light thereto, and a frequency or wavelength conversion section for outputting signal light having a frequency or wavelength converted from that of the signal light inputted thereto from the optical phase conjugation section. The optical phase conjugation section and the frequency or wavelength conversion section are combined by a plural number so that a frequency or wavelength of output signal light of the optical phase conjugator coincides with a frequency or wavelength of input signal light to the optical phase conjugator.

REFERENCES:
patent: 5365362 (1994-11-01), Gnauck et al.
patent: 5596667 (1997-01-01), Watanabe
patent: 5604617 (1997-02-01), Mori et al.
Watanabe S et al: "Compensation of Pulse Shape Distortion Due to Chromatic Dispersion and Kerr Effect by Optical Phase Conjugation" IEEE Photonics Technology Letters, vol. 5, No. 10, 1 Oct. 1993, pp. 1241-1243, XP000414224 *figure 2*.

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